Polishing-machine.



C. L- HAWES.

POLISHING MACHINE.

APPLICATION FILED MAIL 3!. 1913.

1,299,347. Patented Oct. 3, 1916.

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'r nn STATES PATENT onmon.

CHARLIE Id. HA'W-ES, OF ASHTABULA, OHIO. I

POLISHING-MACHINE.

ggg grpi Specification of Letters Patent. Patented Oct 3, 191{} App1ication filed March 31, 1913. Serial No. 757,771.

T all whom'itwmy concern: of its rim formed to receive a polishing' Be it known that I, CHARLIE L. HAWES, a belt 5, the other end of said .belt passing citizen of the United States, and a resident around another wheel, not shown. Said of Ashtabula, county of Ashtabula, and wheel also has a laterally extending rim 60 5 State of Ohio, have invented a new and portion 6, the outer end of which is flanged useful Improvement in Polishing-Machines, and has riveted thereto an annular plate 7. of which the following is a specification, which projects radially beyond the rim some the principle of the invention being distance, as shown in Fig. 2. Laterally herein explained and the best mode in spaced from this plate, and lying on the 6b 10 which I have contemplated applying that belt side of the same, is a second annular principle, so as to distinguish it from other plate 8, the internal diameter of which is inventions. considerably greater than that of the outer The present improvements relate more plate. Between these two plates are secured particularly to polishing machines of the a plurality of blades 9, said blades being 7 1 kind described in my Patent No. 889,680, mounted in angular relation to radial lines dated June 2, 1908, wherein'a polishing belt from the axis of the wheel, and their inner is passed over a pair of wheels, adjacent to edges lying in advance of their outer edges, one of which a fan is mounted so as to be having regard to the direction of rotation adapted to draw the dust from said belt. of the wheel and fan, as shown in Fig. 3. 7 The object of the present invention is to Said blades are also slightly curved in a provide an improved construction of fan transverse plane, their convex sides being for use in the connection thus noted, it havdisposed outwardly, as is also clearly shown ing been found that the style of fan origiin the figure just referred to. Each blade nally designed for use in sa1d polishing mais formed with a pair of integral ears or 80 chine was extremely noisy and the use of lugslO at its forward and rear edge, respecthe machine, on this account, rendered distively, whereby they are riveted to the two agreeable. annular plates, the inner plate being wholly To the accomplishment of the foregoing supported by virtue of its connection with and related objects, the invention, then, conthe outer plate through the blades thus riv- 35 sists of the means hereinafter fully deeted thereto. It will be observed that by scribed and particularly pointed out in the reason of the larger internal diameter of claims. the inner plate 8, anannular opening is left The annexed drawing and the following on the corresponding side of the fan. description set forth in detail certain mech- The walls of the casing 11, previously re- 90 anism embodying the invention, such disferred to in a general way, entirely inclose closed means constituting, however, but one both the fan and-the wheel, the side 12 of of the various mechanical forms in which the casing adjacent the wheel being preferthe principle of the invention may be used. ably hinged, as shown in Fig. 1, so as to per- In said annexed drawing :-Figure 1 is a mit such side to be swung open in order to 95 side elevational view, with portions broken get at the interior of the casing and remove away, of my improved polishing machine; the belt 5, when desired. Such casing, in Fig. 2 is a transverse section thereof taken addition, is provided with an inwardly ex on the plane indicated by the line 2-2, Fig. tending web 13, which forms a closed par- 1; and Fig. 3 is a fragmentary view of the tition between the wheel and the fan, save fan proper, partly in section and on a somefor two apertures, one 14: at the upper side what larger scale than the two preceding of the wheel and another smaller one 15 at figures. its lower side, (see Fig. 1). In other words, The main member of the polishing mathe wheel and fan revolve in separate comchine, so far as shown in the foregoing partments having communication only 105 figures, is a rotatably supported pulley through these two openings.- The casing is wheel 1, which is carried on a spindle 2 furthermore provided with an outlet opensuitably journaled in bearings 3. The latter ing 16 leading from the fan chamber, which form part of a combined frame and casing opening may be connected with a suitable structure, which incloses the wheel and cerduct, as wlll be readily understood. 110 tain attached parts, as will presently be de- By reason of the foregoing construction,

scribed. The wheel 1 has one portion 4 and particularly by reason of the disposition of the blades of the fan, I have found in practice that the objectionable noise heretofore encountered is substantially entirely eliminated, the fan running very smoothly and quietly even at the high velocity which it is desirable to employ in order to get the best results with the polishing belt. A pulley 17 for a driving belt, is shown on the spindle 2 that carries the wheel and fan, but it will be understood that the polishing belt may be driven from its other end, or that the spindle 2 may be connected with a motor, as found most convenient in practice.

Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any of the following claims, or the equivalent of such stated means be employed.

I therefore particularly point out and dis tinctly claim as my invention 1. In mechanism of the character described, the combination of a rotatably sup ported pulley wheel, said wheel having a laterally extending rim-portion; an annular plate attached to the edge of such extending rim-portion; a second annular plate of larger internal diameter spaced from said first plate on the same side thereof as said wheel; a plurality of fan-blades mounted between said plates in angular relation to radial lines from the axis of said wheel, the inner edges of said blades lying in advance of their outer edges, having regard to the direction of rotation of the wheel said blades curving into a tangential position at their outer edges; and a casing inclosing said wheel and fan.

2. In mechanism of the character described, the combination of a rotatably supported pulley wheel, said wheel having a laterally extending rim-portion; an annular plate attached to the edge of such extending rim-portion; a second annular plate of larger internal diameter spaced from said first plate on the same side thereof as said wheel; a plurality of fan-blades mounted between said plates in angular relation to radial lines from the axis of said wheel, the inner edges of said blades lying in advance of their outer edges, having regard to the direction of rotation of the wheel, and said blades being curved with their convex sides dis- Copies of this patent may be obtained for five cents each, by addressing the posed outwardly and curving into a tangential position at their outer edges; and a casing inclosing said wheel and fan.

8. In mechanism of the character described, the ccmbination of a rotatably supported pulley wheel, said wheel having a laterally extending rim-portion; an annular plate attached to the edge of such extending rim-portion; a second annular plate of larger internal diameter spaced from said first plate on the same side thereof as said wheel; a plurality of fan-blades mounted between said plates in angular relation to radial lines from the axis of said wheel, the inner edges of said blades lying in advance of their outer edges, having regard to the direction of rotation of the wheel, and said blades being curved with their convex sides disposed outwardly; and a casing inclosing said wheel and fan, an interior web in said casing forming a partition between said fan and the wheel proper and having an aperture at the upper and lower sides of the wheel only.

4. In mechanism of the character de scribed, the combination of a rotatably supported pulley wheel, said wheel having a laterally extending rim portion; an annular plate attached to the edge of such extending rim portion; a second annular plate of larger internal diameter spaced from said first plate on the same side thereof as said wheel; a plurality of fan blades mounted between said plates in angular relation to radial lines from the axis of said wheel, the inner edges of said blades lying in advance of their outer edges, having regard to the direction of rotation of said wheel, and said blades being curved with their convex sides disposed outwardly; and a casing inclosing said wheel and fan, said casing being formed to relatively correspond with the different diameters of said wheel and said fan. and an interior web in said casing forming a partition between said fan and said wheel proper and having an aperture at the upper and lowersides of the wheel only.

Signed by me, this 27th day of March, 1913.

CHARLIE L. HAIVES.

Commissioner of Patents.

7 Washington, D. C. 

